Wire bond wires for interference shielding
View Patent ↗Apparatuses relating generally to a microelectronic package having protection from interference are disclosed. In an apparatus thereof, a substrate has an upper surface and a lower surface opposite the upper surface and has a ground plane. A first microelectronic device is coupled to the upper surface of the substrate. Wire bond wires are coupled to the ground plane for conducting the interference thereto and extending away from the upper surface of the substrate. A first portion of the wire bond wires is positioned to provide a shielding region for the first microelectronic device with respect to the interference. A second portion of the wire bond wires is not positioned to provide the shielding region. A second microelectronic device is coupled to the substrate and located outside of the shielding region. A conductive surface is over the first portion of the wire bond wires for covering the shielding region.
1. An apparatus for a microelectronic package having protection from interference, comprising:
a substrate having an upper surface and a lower surface opposite the upper surface and having a ground plane;
a microelectronic device coupled to the upper surface of the substrate;
wire bond wires having lower ends coupled to the ground plane, the wire bond wires extending away from the upper surface of the substrate;
the wire bond wires positioned to surround the microelectronic device to provide a shielding region for the microelectronic device with respect to the interference;
a conductive surface positioned above the wire bond wires for covering the shielding region; and
the wire bond wires having upper ends coupled to the conductive surface.
2. The apparatus according to claim 1 , wherein the conductive surface is positioned over the upper ends of the wire bond wires, and wherein the upper ends are mechanically coupled to an underside of the conductive surface.
3. The apparatus according to claim 2 , further comprising:
a second microelectronic device coupled to the substrate and located outside of the shielding region;
wherein the substrate is a package substrate of a system-in-package device.
4. The apparatus according to claim 2 , wherein the microelectronic device includes a passive component.
5. The apparatus according to claim 4 , wherein the passive component is selected from a group consisting of a capacitor, an inductor, and a resistor.
6. The apparatus according to claim 1 , wherein an interconnected combination of the ground plane, the conductive surface, and the wire bond wires provides a Faraday cage.
7. The apparatus according to claim 1 , wherein the upper ends are a first portion of the upper ends of the wire bond wires; and wherein a second portion of the upper ends of the wire bond wires extend through holes in the conductive surface.
8. The apparatus according to claim 1 , further comprising:
bond pads positioned proximate to and around the microelectronic device on the upper surface of the substrate for respectively coupling the lower ends of the wire bond wires thereto for the shielding region; and
the bond pads having a pad-to-pad pitch equal to or less than approximately 250 microns.
9. The apparatus according to claim 1 , wherein the substrate and the ground plane respectively are a first substrate and a first ground plane, the apparatus further comprising:
a second substrate having a second ground plane;
upper ends of the wire bond wires coupled to a bottom surface of the second substrate for coupling to the second ground plane; and
a second microelectronic device coupled to a top surface of the second substrate.
10. An apparatus for a microelectronic package having protection from interference, comprising:
a substrate having an upper surface and a lower surface opposite the upper surface and having a ground plane;
a microelectronic device coupled to the upper surface of the substrate;
wire bond wires bonded to and extending away from the upper surface of the substrate;
the wire bond wires positioned proximate to and around the microelectronic device for providing a shielding region for the microelectronic device with respect to the interference, the wire bond wires coupled to the ground plane for conducting the interference thereto;
a conductive surface over the wire bond wires for covering the shielding region; and
upper ends of the wire bond wires mechanically coupled to the conductive surface and extending above a top surface of the microelectronic device.
11. The apparatus according to claim 10 , wherein the microelectronic device is a first microelectronic device, the apparatus further comprising a second microelectronic device coupled to the substrate and located outside of the shielding region.
12. The apparatus according to claim 10 , further comprising:
bond pads positioned proximate to and around the microelectronic device on the upper surface of the substrate for bonding the wire bond wires to the upper surface of the substrate; and
the bond pads having a pad-to-pad pitch equal to or less than approximately 250 microns.
13. The apparatus according to claim 10 , wherein the substrate, the ground plane and the microelectronic device respectively are a first substrate, a first ground plane and a first microelectronic device, the apparatus further comprising:
a second substrate located over the first microelectronic device and having a second ground plane as the conductive surface, the second substrate located over the upper ends of the wire bond wires; and
a second microelectronic device coupled to a top surface of the second substrate.
14. The apparatus according to claim 10 , wherein an interconnected combination of the ground plane, the conductive surface, and the wire bond wires provides a Faraday cage.
15. An apparatus for a microelectronic package having protection from interference, comprising:
a substrate having an upper surface and a lower surface opposite the upper surface and having a ground plane;
a first microelectronic device coupled to the upper surface of the substrate;
lower ends of wire bond wires coupled to the ground plane for conducting the interference thereto;
the wire bond wires extending away from the upper surface of the substrate;
the wire bond wires positioned to provide a shielding region for the first microelectronic device with respect to the interference;
a second microelectronic device coupled to the substrate and located outside of the shielding region; and
a conductive surface having upper ends of the wire bond wires coupled thereto, the conductive surface covering the shielding region.
16. The apparatus according to claim 15 , further comprising:
bond pads positioned proximate to and around the first microelectronic device on the upper surface of the substrate for coupling the lower ends of the wire bond wires thereto for providing the shielding region for the microelectronic device with respect to the interference; and
the bond pads having a pad-to-pad pitch equal to or less than approximately 250 microns.
17. The apparatus according to claim 15 , wherein an interconnected combination of the ground plane, the conductive surface, and the wire bond wires provides a Faraday cage.
18. The apparatus according to claim 15 , wherein the substrate and the ground plane respectively are a first substrate and a first ground plane, the apparatus further comprising:
a second substrate having a second ground plane;
the wire bond wires coupled to a bottom surface of the second substrate for coupling to the second ground plane as the conductive surface; and
a third microelectronic device coupled to a top surface of the second substrate.
19. The apparatus according to claim 15 , wherein the first microelectronic device includes an integrated circuit die.
20. The apparatus according to claim 15 , wherein the first microelectronic device includes a passive component.